2010 street GT3 vs Cup front rotors

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09-23-2011, 01:30 AM

#31

mikymu

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Quote:

Originally Posted by LC MotorSports

Also, keep in mind that each of these pads have a different Clearance Arc. This means that each rotor assembly is slightly different in its Hat Configuration.

That was what I was afraid to find out. I order a set of motorsports Cup front rotors and they will arrive tomorrow for comparison

Cheers

Mike

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09-23-2011, 03:40 PM

#32

ir_fuel

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Quote:

Originally Posted by 1198r

Funny you should say that. I am just about to change my discs (see other thread running) and was talking to shop about pads. they had a pad for a 997 Cup (2006 model i think) and although it was very similar it was 2mm thicker than the pad for the gen 2 rs street car (this was rs29's).

He got the RS29 U8004

What you need is the RS29 U8003, this one is 2mm thinner.
U8004 works but requires much more messing around to install if you have new discs.

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09-23-2011, 03:42 PM

#33

ir_fuel

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A friend of mine upgraded the steel front brakes of his 997.1 GT3RS. They installed the calipers of the 997.2 and installed 997.1 cup discs. These are very different from the discs shown so far in this thread: